Abstract
In this work, we demonstrate an approach to potentially lower the quantum defect to ∼1% without significant compromise of efficiency. In a first demonstration, a diffraction-limited ∼154 W laser emitting at ∼993 nm with negligible amplified spontaneous emission, pumped at ∼976 nm, was achieved with a slope efficiency of ∼75% vs the launched pump power. The laser quantum defect is a record low of 1.7% for high-power (>100 W) solid-state lasers to the best of our knowledge. The output is only limited by the available pump power.
Original language | English (US) |
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Article number | 111302 |
Journal | APL Photonics |
Volume | 9 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2024 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Computer Networks and Communications